What is a web search engine?
"A web search engine is a tool designed to search for information on the World Wide Web. The search results are usually presented in a list and are commonly called hits. The information may consist of web pages, images, information and other types of files. Some search engines also mine data available in databases or open directories. Unlike Web directories, which are maintained by human editors, search engines operate algorithmically or are a mixture of algorithmic and human input."
-- "Web Search Engine," Wikipedia
Top Ten
- Creative Commons
"Find licensed works that you can share, mix, or reuse." Avoid the complex process of evaluating copyright status by using digital objects that are clearly marked with copyright licenses. - Data.gov Public access to high value, machine readable datasets generated by the executive branch of the federal government.
- GazoPa "GazoPa is a similar image search service on the web in open beta by Hitachi. Users can search images from the web based on user’s own photo, drawings, images found on the web and keywords. GazoPa enables users to search for a similar image from characteristics such as a color or a shape extracted from an image itself." -- GazoPa.com. Note: Google's "Find Similar Images" feature has graduated from Google Labs and is available in Google Images searches.
- Government Printing Office's Federal Digital System Provides public access to Government information submitted by Congress and Federal agencies and preserved as technology changes.
- Kosmix "Lets users explore the Web by topic, presenting a dashboard of relevent videos, photos, news, commentary, opinion, communities and links to related topics." -- Kosmix.com
- OAIster: find the pearls OAIster is a union catalog of digital resources held at institutions around the world.
- OneRiot "OneRiot crawls the links people share on Twitter, Digg and other social sharing services, then indexes the content on those pages in seconds. The end result is a search experience that allows users to find the freshest, most socially-relevant content from across the realtime web." -- OneRiot.com
- Science.gov Gateway to government science information and research results. Searches content on authoritative science websites and on federal science agencies' databases.
- VideoSurf Searches the major video sites using "computer vision algorithms." Provides film strips for each result so that you can see the video before you click.
- Viewzi Offers alternatives to the standard list of links for search results viewing. Try the Power Grid, Web Screenshot, or Google Timeline.
- Wheel of Lunch Can't decide where to go for lunch? Spin the wheel!
- Wolfram|Alpha "Computational knowledge engine that draws on multiple sources to answer user queries directly." -- Wolfram|Alpha.com
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